48
SD Series Technical Manual
MDS 05-4846A01, Rev. H
Packet Settings
•
COM1/COM2 Port Inter-Packet Gap
—Timing setting used to delimit a
packet on the serial interface for radios operating in Packet Mode.
Too short of a time can cause serial streams to be combined into
one large packet instead of two smaller ones. Too long of a time
can effectively slow down the communications channel. The
Inter-Packet Gap is specified by the number of character times
(the time it takes to send an individual character).
•
Transparent RX Timeout (ms)
—This setting is similar to the timing
parameters for
COM1/COM2 Inter-Packet Gap
, but it applies to data
received
over-the-air
. It tells the radio how to build an Ethernet
packet based on a transparent data stream received over the radio
channel.
Media Access
Control
(AP menu shown)
•
Device Type
—Selects
Access Point
,
Remote
, or
Store and Forward
. An
Access Point
serves as the Controller of the RF network. Only
one radio is configured as an AP. Typically this is the “polling
master.” A
Remote
is connected to end devices in the field (
e.g.
PLC, RTU), and there can be any number of these in a network.
Each Remote must have a unique Unit Address, which is set on
